Arrowstar Completes Benefication Testing from 105 samples, at Port
Snettisham, Alaska, Iron Ore Project
TSX.V: AWS
VANCOUVER, Dec. 11, 2012 /PRNewswire/ - Robert L. Card, President of Arrowstar Resources
Ltd., (TSXV: AWS), (the "Company") reports that the Company
has commissioned Inspectorate in Vancouver to complete an analysis of 105 rock
samples (that included non-magnetite samples) that were categorized
into two batches, the Piling group that is closely located to the
ground magnetic survey high identified near claim 14 of the
property and the Beach group located near Claim 24. Each sample was
tested for Fe and other elemental contents and a Davis Tube test
completed to determine the magnetic component of the iron. The
results are tabulated below:
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
Snettisham Samples % Chemical Analysis |
|
|
|
|
|
|
| |
|
Fe |
|
S |
|
P |
|
SiO2 |
|
Al2O3 |
|
TiO2 |
|
V2O5 |
K2O |
Na2O |
CaO |
MgO |
|
Mn |
Ni |
Cu |
LOI |
| Min |
|
9.99 |
|
0.00 |
|
0.00 |
|
1.71 |
|
1.24 |
|
0.34 |
|
0.03 |
0.01 |
0.02 |
0.66 |
3.87 |
|
0.11 |
0.00 |
0.00 |
0.00 |
| Max |
|
58.35 |
|
0.41 |
|
2.10 |
|
44.06 |
|
10.15 |
|
6.53 |
|
0.57 |
1.77 |
1.77 |
20.65 |
32.30 |
|
0.40 |
0.05 |
0.03 |
10.73 |
| Avg |
|
21.28 |
|
0.03 |
|
0.41 |
|
32.46 |
|
5.20 |
|
2.55 |
|
0.18 |
0.39 |
0.27 |
12.96 |
13.52 |
|
0.18 |
0.01 |
0.01 |
1.33 |
| Std Mev |
|
9.24 |
|
0.08 |
|
0.53 |
|
7.72 |
|
1.99 |
|
1.28 |
|
0.11 |
0.43 |
0.27 |
5.76 |
7.21 |
|
0.06 |
0.01 |
0.01 |
2.59 |
- LOI is loss of ignition, Fe is Total Fe as analysed by XRF
The average Fe of 21% is typical for pyroxenite,
and during operations a mining engineer will be testing the head
grade to ensure it meets the cut off grade. The S, P, SiO2
and Al2O3 grades on samples containing high
Fe conformed with commercial grades.
Davis Tube Tests
The 105 samples were crushed and then tested for magnetic
attraction to simulate going over a high speed magnetic drum in
production. Because of the diversity of the samples, this
simulated the iron ore input grade. The results were
encouraging, and within the norm for this type of deposit.
Mag
Conc. |
Magnetic
Concentration |
Non-Mag |
105
samples |
% |
% |
| min |
6.20 |
11.32 |
| max |
88.68 |
93.80 |
| avg |
25.48 |
74.52 |
| std dev |
15.04 |
15.04 |
The high non-magnetic silicates reflects the ferro silicates
present in the host pyroxenite. The range of 20-30% Fe
Magnetic material is typical for this style of deposit.
Beneficiation Testing Results
Each of two composites was crushed to four (4) different sizes and
subjected to a magnetic separation process as follows:
| |
|
6.3 mm (1/4") |
|
|
Permroll Separator |
| |
|
3.4 mm (6 mesh) |
|
|
Permroll Separator |
| |
|
1.7 mm (10 mesh) |
|
|
Permroll Separator |
| |
|
0.15 mm (100 mesh) |
|
|
Sala Separator |
The three permroll tests produced a concentrate,
middlings and tailings product, while the Sala test resulted in a
concentrate and tailings. All products were analysed for
Fe3O4 (magnetite content). The composite
samples were crushed and ground to 0.15 mm (100 mesh) and a
significant upgrading occurred compared to 6.3mm to 1.7mm. At this
0.15mm size concentrate grades of 80.0% and 85.2%
Fe3O4 were achieved. These are very
high and suitable for dry magnetic separation. We may decide
to ship iron concentrate at 100 mesh size to iron ore concentrators
or alternatively put in our own pellitiser for easier bulk handling
or depending on economics make sinter pellets. A quotation
has been received for both pieces of equipment, and a ball mill or
tertiary crusher has been added to the plant configuration to
accommodate these findings.
Test: Sala 1
Sample: Beach Composite - 0.15 mm ( -100 mesh)
|
| Product |
|
Weight |
|
Assay |
|
% Yield |
| |
|
g |
|
% |
|
% Fe3O4 |
|
Fe3O4 |
| Magnetic Product |
|
37.0 |
|
37.8 |
|
80.0 |
|
83.2 |
| Non Magnetic Tails |
|
60.8 |
|
62.2 |
|
9.8 |
|
16.8 |
| Calculated Head |
|
97.7 |
|
100.0 |
|
36.4 |
|
100.0 |
Test: Sala 2
Sample: Pilings Composite -0.15 mm (-100 mesh) |
| Product |
Weight |
Assay |
% Distribution |
| |
g
% |
% Fe3O4 |
Fe3O4 |
| Magnetic Product |
36.8
60.8 |
36.7
85.2
62.2
|
77.9 |
Non Magnetic Tails |
63.5
60.8
|
63.3 14.0
62.2
|
22.1 |
| Calculated Head |
102.2
100.0 |
40.1 |
100.0 |
Phillip Thomas BSc Geol. MBus, MAIG, a Director
and Qualified Person under National Instrument 43-101, has reviewed
and approved the content of this release but is not permitted to
make any NI 43-101 declarations as he holds the position of
Director.
On Behalf of the Board of Directors,
Arrowstar Resources Ltd.
"Robert L. Card"
Robert L.
Card
President
"Neither TSX Venture Exchange nor its
Regulation Services Provider (as that term is defined in the
policies of the TSX Venture Exchange) accepts
responsibility for the adequacy or accuracy of this
release."
Forward-Looking Statements: This document
includes forward-looking statements. Forward-looking statements
include, but are not limited to, statements concerning AWS's
planned exploration programs and other statements that are not
historical facts. When used in this document, the words such as
"could," "plan," "estimate," "expect," "intend," "may,"
"potential," "should," and similar expressions are forward-looking
statements. Although AWS believes that its expectations reflected
in these forward looking statements are reasonable, such statements
involve risks and uncertainties and no assurance can be given that
actual results will be consistent with these forward-looking
statements. Important factors that could cause actual results to
differ from these forward-looking statements are disclosed under
the heading "Risk Factors" and elsewhere in the corporation's
periodic filings with Canadian securities regulators.
SOURCE Arrowstar Resources Ltd.